ServiceManager.RemoveCallback(Delegate, Delegate) 方法

定義

命名空間:

System.Activities.Presentation

組件:

System.Activities.Presentation.dll

Helper 方法，這個方法會執行 Delegate.Remove 作業，並且取消包裝泛型回呼 Proxy 的委派。 請在您的 Unsubscribe 實作中使用這個方法。

protected:
 static Delegate ^ RemoveCallback(Delegate ^ existing, Delegate ^ toRemove);

protected static Delegate RemoveCallback (Delegate existing, Delegate toRemove);

static member RemoveCallback : Delegate * Delegate -> Delegate

Protected Shared Function RemoveCallback (existing As Delegate, toRemove As Delegate) As Delegate

參數

existing

Delegate

要移除回呼的現有委派。

toRemove

Delegate

要移除的回呼。

傳回

Delegate

Delegate傳回 ，這是要指派給現有委派的新值。